It’s not unusual for jellyfish to wash ashore along the Texas coast. More often than not, they’re harmless moon jellies — ...

Go behind the scenes at the Greensboro Science Center to meet moon jellyfish and learn surprising facts from animal care specialist Elizabeth Hincker.

Scientists exploring the deep waters off Argentina's coast captured footage of a giant phantom jellyfish, a rarely seen ...

In jellyfish and sea anemones, neurons accumulate DNA damage while animals are awake and repair that damage during sleep.

During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.

A team of students at Tohoku University in northeastern Japan discovered a new species purely by happenstance.

The UFOs reportedly appeared between 6:40 p.m. and 7:10 p.m. local time on Feb. 2. While the witnesses were unable to capture the phenomenon on camera, they were so bewildered by what they saw that ...

Astronomers have strengthened long-standing predictions that massive runaway stars could have originated in binary pairs, and ...

When I was 6 years old, my family went on vacation to a beach in North Carolina. While I was swimming, there was a massive jellyfish bloom. Small, translucent ...

An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops ...

Jellyfish and sea anemones are curious creatures: these organisms evolved without a brain and, as scientists discovered only in the past few years, don’t need one to sleep. The animals do, however, ...

Jellyfish seem to sleep for about 8 hours a day, take midday naps and snooze more after a bad night’s sleep – just like us. Sleep is thought to have first evolved in marine creatures like these, and ...